Physics
Scientific paper
Nov 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jastp..65.1411f&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 65, Issue 16-18, p. 1411-1424.
Physics
4
Lidar, Resonance Lidar, Middle Atmospheric Temperatures, Middle Atmospheric Chemistry, Mesosphere And Lower Thermosphere
Scientific paper
We have developed a lidar to study the temperature structure of the nighttime mesopause region over the Arecibo Observatory (18.35°N, 66.75°W) by measuring the lineshape of the fluorescence spectrum of atomic potassium that is deposited in the mesosphere and lower thermosphere (MLT) by meteors. To demonstrate how the potassium lidar can enhance MLT studies at Arecibo, we show recent results for: (1) comparisons with airglow temperature measurements; (2) simultaneous operations with stratospheric and mesospheric temperature profiling by Rayleigh lidar; (3) simultaneous observations of K, Ca+, and E-region electron density profiles; and (4) occurrences of sporadic K layers, and relationships to sporadic E layers.
Delgado Rubén
Friedman Jonathan S.
Hedin Jonas
Raizada Shikha
Tepley Craig A.
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